Perhaps the best perk of working on a NASA mission is getting the official stitched mission patch. Nearly every project at the space agency produces its own unique emblem that is adorned by astronauts and engineers alike, serving as a reminder of the hard work put into each assignment. Even the National Laboratory on the International Space Station, which is overseen by the Center for the Advancement of Science in Space (CASIS), gets its own unique mission patch year to year.